A methodology for reliability, availability and maintainability of load haul dumper in an underground coal mine through industrial automation - a new trend setter

摘要

LHD (LoadHaul Dumper) is now used as a loading machine for intermediate mechanization in underground coal mining. For survival in the intense competition in the global business environment in recent years it is essential that LHD machine should be reliable and maintained effectively and efficiently. In this paper, a framework for integrated mining system is developed for reliability improvement to address this issue and availability, maintainability (RAM) of an LHD machine with failure and repair data with a case study. Constraints and reasons for machine unavailability are outlined. The RAM of a LHD and its subsystems are evaluated. Possible modification or design alternatives are highlighted through automation.